Lighting fixture



FIG. 1 is a perspective view of a new lighting fixture design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a back elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a left side elevational view thereof.

The broken line disclosure in the views represents environmental structure which forms no part of the claimed design. 

CLAIM The ornamental design for a lighting fixture, as shown and described. 